docs: def entry_point_name_to_identifier(entry_point_name):
      """Transform an entry point name into an identifier suitable for inclusion
      in a PyPI package name."""
      try:
          entry_point_name.encode('ascii')
          ascii_name = entry_point_name
      except UnicodeEncodeError:
          ascii_name = entry_point_name.encode('punycode').decode('ascii')
      return ''.join(char for char in ascii_name
                     if char in string.ascii_lowercase + string.digits)